11 papers
A Quantum-Enhanced Feedback Oscillator
Hudson A. Loughlin, Daniel M. DeSantis, Nergis Mavalvala +1
Feedback oscillators, such as lasers and masers, serve as time references in modern computing, communication, and measurement. Quantum fluctuations ultimately limit their phase sta…
Continuum-field quantum optics of frequency comb metrology
Dong-Chel Shin, Edwin Ng, Myoung-Gyun Suh +1
Frequency combs enable precision measurements across timekeeping, spectroscopy, ranging and astronomy, and are now extending to integrated and field-deployable platforms. Realizing…
Completely-positive non-signalling non-Markovian dynamics
Serhii Kryhin, Vivishek Sudhir
We define non-Markovian quantum dynamics as evolution in which the current state depends on all past states, and completely characterize its structure under the assumptions of comp…
Noise-Resilient Quantum Metrology
Hudson A. Loughlin, Melissa A. Guidry, Jacques Ding +7
Quantum metrology seeks to leverage the richness of quantum systems for making better measurements than are possible using only classical resources in order to gain a ``quantum adv…
Forecasting in the presence of scale-free noise
Serhii Kryhin, Tatiana Mouzykantskii, Vivishek Sudhir
The extraction of signals from noise is a common problem in all areas of science and engineering. A particularly useful version is that of forecasting: determining a causal filter…
Wave-particle duality in the measurement of gravitational radiation
Hudson A. Loughlin, Germain Tobar, Evan D. Hall +1
In a consistent description of the quantum measurement process, whether the wave or particle-like aspect of a system is revealed depends on the details of the measurement chain, an…